ABB Relion 670 Series Applications Manual page 262

Section 16
Monitoring
16.4.3.1 Setting procedure on the IED
The parameters for breaker monitoring (SSCBR) can be set via the local HMI or Protection and
Control Manager (PCM600).
Common base IED values for primary current (
SBase ) are set in Global base values for settings function GBASVAL.
(
GlobalBaseSel : It is used to select a GBASVAL function for reference of base values.
Operation : Enabled or Disabled .
IBase : Base phase current in primary A. This current is used as reference for current settings.
OpenTimeCorr : Correction factor for circuit breaker opening travel time.
CloseTimeCorr : Correction factor for circuit breaker closing travel time.
tTrOpenAlm : Setting of alarm level for opening travel time.
tTrCloseAlm : Setting of alarm level for closing travel time.
OperAlmLevel : Alarm limit for number of mechanical operations.
OperLOLevel : Lockout limit for number of mechanical operations.
CurrExponent : Current exponent setting for energy calculation. It varies for different types of
circuit breakers. This factor ranges from
AccStopCurr : RMS current setting below which calculation of energy accumulation stops. It is
given as a percentage of
ContTrCorr : Correction factor for time difference in auxiliary and main contacts' opening time.
AlmAccCurrPwr : Setting of alarm level for accumulated energy.
LOAccCurrPwr : Lockout limit setting for accumulated energy.
SpChAlmTime : Time delay for spring charging time alarm.
tDGasPresAlm : Time delay for gas pressure alarm.
tDGasPresLO : Time delay for gas pressure lockout.
DirCoef : Directional coefficient for circuit breaker life calculation.
RatedOperCurr : Rated operating current of the circuit breaker.
RatedFltCurr : Rated fault current of the circuit breaker.
OperNoRated : Number of operations possible at rated current.
OperNoFault : Number of operations possible at rated fault current.
CBLifeAlmLevel : Alarm level for circuit breaker remaining life.
AccSelCal : Selection between the method of calculation of accumulated energy.
256
0.5 to 3.0 .
IBase .
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IBase ), primary voltage ( VBase ) and primary power
Phasor measurement unit RES670
1MRK 511 407-UUS Rev. J
GUID-4E895FEA-74BF-4B11-A239-0574F8FF5188 v5
Application manual